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feat: Add value representer to enum.StrEnum type #839

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feat: Add value representer to enum.StrEnum type #839

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c05afbb
feat: Add representer to `enum.StrEnum`
rapsealk Dec 3, 2024
0cbe638
Update representer.py
rapsealk Dec 4, 2024
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10 changes: 8 additions & 2 deletions lib/yaml/representer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
from .error import *
from .nodes import *

import datetime, copyreg, types, base64, collections
import datetime, copyreg, types, base64, collections, sys

class RepresenterError(YAMLError):
pass
Expand Down Expand Up @@ -145,7 +145,7 @@ def represent_none(self, data):
return self.represent_scalar('tag:yaml.org,2002:null', 'null')

def represent_str(self, data):
return self.represent_scalar('tag:yaml.org,2002:str', data)
return self.represent_scalar('tag:yaml.org,2002:str', str(data))

def represent_binary(self, data):
if hasattr(base64, 'encodebytes'):
Expand Down Expand Up @@ -236,6 +236,12 @@ def represent_undefined(self, data):
SafeRepresenter.add_representer(str,
SafeRepresenter.represent_str)

if sys.version_info >= (3, 11):
from enum import StrEnum

SafeRepresenter.add_multi_representer(StrEnum,
SafeRepresenter.represent_str)

SafeRepresenter.add_representer(bytes,
SafeRepresenter.represent_binary)

Expand Down
14 changes: 14 additions & 0 deletions tests/test_dump_load.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
import sys

import pytest
import yaml

Expand All @@ -13,3 +15,15 @@ def test_load_no_loader():

def test_load_safeloader():
assert yaml.load("- foo\n", Loader=yaml.SafeLoader)


def test_dump_str_enum():
if sys.version_info < (3, 11):
return

from enum import StrEnum

class ContentType(StrEnum):
YAML = "YAML"

assert yaml.load(yaml.dump(ContentType.YAML, Dumper=yaml.SafeDumper), Loader=yaml.SafeLoader) == ContentType.YAML